Looks like sibling of vehicle called "dálník" invented here in the sixties. They were later produced in Switzerland, iirc. The two side wheels are only for takeoff and landing. When you are on speed, they lift up and you basically have an enclosed motorcycle. See Wikipedia article : https://en.m.wikipedia.org/wiki/Ecomobile.
(They are now built here: https://www.peravescz.com. Would be interesting to know, if the facebook guy bought their patents)